XML 41 R40.htm IDEA: XBRL DOCUMENT v2.4.0.8
Accounts Receivable (Detail) (USD $)
In Thousands, unless otherwise specified
Jul. 28, 2013
Apr. 28, 2013
Jul. 29, 2012
Apr. 29, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Customers $ 25,829 $ 24,715    
Accounts receivable, net 24,493 23,392 [1] 20,021  
Allowance for doubtful accounts [Member]
       
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Valuation allowance, balance (743) (780) (639) (567)
Reserve for returns and allowances and discounts [Member]
       
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Valuation allowance, balance $ (593) $ (543) $ (566) $ (478)
[1] Derived from audited financial statements.